Daviesia ulisifolia is commonly known as the Gorse Bitter Pea and is also often referred to as Egg and Bacon due to its distinctive yellow/orange/red colouration.
Native bees are often seen around bushes in full bloom. Daviesia has a typical pea flower thats operation depends on the visiting insect depressing the flower keel to expose the reporoductive parts.

Pollen images

light microscopy
electron microscopy